A man residing in Stone Oak has been arrested and charged with evidence tampering Sunday in conjunction with the disappearance of his 29-year-old wife. Andreen Nicole McDonald has been missing since Friday, when authorities were alerted she didn’t show up at work. According to Bexar County Sheriff Javier Salazar, no friends, family members or co-workers have seen or heard from the missing woman since Thursday.

Authorities said most of McDonald’s belongings including personal items were still left at the couple’s home near Canyon Golf and Wilderness Oak and that she is not with her family, who live in the Caribbean. The FBI confirmed she has not left the United States.

When Sheriff’s deputies made contact with her husband, Andre McDonald, he refused to speak with them. They declared him a person of interest and began surveillance on the Stone Oak residence. Saturday, authorities followed the husband to a gun shop, where he purchased a handgun and ammunition.
Authorities watched Andre depart the store in such a hurry he left behind his identification and the gun he had just purchased. Deputies later detained him outside his residence "due to a possible mental issue." Andre is currently serving as a major in the U.S. Air Force at Lackland Air Force Base. Salazar said McDonald's a highly intelligent man who works in the cyber warfare field.
After finding human blood evidence, the Sheriff’s department obtained a second search warrant for the residence. BCSO found a shovel, an ax, work gloves and gasoline that had been recently purchased. Salazar said this led them to believe that Andre McDonald was going to dispose of a body, but the BCSO does not believe he has yet completed the task.
"At this time, we believe Andreen McDonald is no longer living," Salazar released. He added that they are looking in ravines and creek beds with cadaver dogs. The Sheriff promises bond will be set very high, and if Andre does make bond, Salazar said he will get a GPS or house arrest to allow BCSO to keep investigating.
The couple has a 6-year-old daughter with autism. Salazar said she is nonverbal and BCSO believes she may have seen something happen to her mom.
The Sheriff's Office is asking that anyone with information on McDonald's whereabouts or interested in sharing surveillance footage from the 1000 block of Solitude Cove, call (210)-335-6000 or email missingpersons@bexar.org or bcsotips@bexar.org.